A garden inspired by Mary Anning has won an award at the prestigious Chelsea Flower Show. The Mary Anning Space to Learn Garden created by Sandhurst Garden Design has been awarded a bronze. The award-winning container garden was designed by first-time exhibitors Julie and Andrew Haylock.
The award-winning Mary Anning Space to Learn Garden at the prestigious Chelsea Flower Show. A garden inspired by the pioneering palaeontologist from Lyme Regis. The carefully selected plants including specimens of plants similar to those that existed in the Mesozoic is set against a backdrop that reflects the cliffs of Lyme Regis. Picture credit: Rachel Moffett Photography.
The Mary Anning Space to Learn Garden
The Yeovil-based garden design business wanted to create a container garden that reflected the work of Mary Anning, highlighting her contribution to the science of palaeontology. The theme for the Royal Horticultural Society (RHS) Chelsea Flower Show is encouraging young people to get involved in gardening. The husband-and-wife design team created an outdoor learning space for primary school students to help them explore nature.
Carved wooden seats for the students and their teacher echo the fern-dominated planting of the garden. Set amongst moss-covered tree stumps planted with Jurassic effect is a replica of a plesiosaur fossil. Mary Anning discovered an almost complete fossil of a plesiosaur in 1823.
A replica of the skeleton of a plesiosaur can be found in the garden along with the “she sells seashells” verse. Picture credit: Rachel Moffett Photography.
Mary and her family members made several significant and highly influential fossil discoveries. Ichthyosaur remains (another type of marine reptile), were uncovered and in December 1828, the first pterosaur fossil discovery in England was made by Mary Anning.
For models and replicas of plesiosaurs, ichthyosaurs and pterosaurs visit Everything Dinosaur’s award-winning website: Everything Dinosaur.
Prehistoric Plants
A variety of plants were incorporated into the outdoor space. Ferns selected include Blechnum spicant, Dryopteris wallichiana “Jurassic Gold”, Asplenium scolopendrium, and Asplenium trichomanes. An example of the evergreen Pseudopanax crassifolius was included along with the tree fern Dicksonia antarctica.
In addition, a Wollemia Pine specimen featured. This ancient tree lineage is thought to date back to the Early Jurassic. It was believed to be extinct, until a small group of trees was discovered in a deep gorge located in a temperate rainforest in New South Wales. Although commonly referred to as a pine, this tree is a member of the Araucariaceae and more closely related to the Araucaria (Monkey Puzzle Tree).
A geology hammer and a wicker basket similar to the one used by Mary Anning can be found in the garden. Picture credit: Rachel Moffett Photography.
Providing a Legacy
Stone replica ammonite shells are dotted around the garden and the large crazy paving stones are engraved by the “She Sells Seashells” tongue-twister, which is thought to have been written in honour of Mary Anning.
Having been part of the world-famous RHS Chelsea Flower Show, the garden will live on. Parts of it are being transplanted to Charmouth Primary School, close to Lyme Regis. Schoolchildren will be able to continue to enjoy elements of the garden and perhaps they may be inspired to follow in Mary’s footsteps.
A spokesperson from Everything Dinosaur commented:
“It is a beautiful garden design. We are delighted to hear that it was awarded a bronze medal. Our congratulations to all the people who helped create this inspirational garden.”
Everything Dinosaur acknowledges the assistance of a press release from the RHS in the compilation of this article.
The curators at the Museums Victoria confidently predict that their Triceratops exhibition will exceed one million visitors next month. In an email sent to Everything Dinosaur, the Museums Victoria state that “Triceratops: Fate of the Dinosaurs” will have received over a million visitors by the middle of June 2023.
“Triceratops: Fate of the Dinosaurs” is an immersive voyage into a lost world. Visitors will explore the landscapes of the Late Cretaceous and get to know the prehistoric animals that thrived there. The star exhibit is a specimen of Triceratops horridus. The fossils of this dinosaur were discovered in Montana (2014).
The bones found represent about 87% of the entire skeleton. It is one of the most complete, large dinosaur fossils ever found. The skull and neck frill are the most complete of any known Triceratops specimen (greater than 99% complete). The assembled frill measures over 1.48 metres wide.
One Million Visitors
The exhibition has proved to be extremely popular. Museum staff have predicted that the attraction would have received a million visitors by the middle of next month (June 2023).
To celebrate this milestone, staff will be dressing up as dinosaurs for the day. Visitors to Melbourne Museum, the location of the Triceratops exhibit, will also be encouraged to channel their “inner dinosaur”. Visitors will be invited to come to the museum in dinosaur fancy dress. According to the correspondence received by Everything Dinosaur, spot prizes will be offered for the best costumes.
A Triceratops Exhibit
The Triceratops skeleton has been nicknamed “Horridus”. The fossils inspired CollectA to create a 1:40 scale Triceratops horridus figure.
The CollectA Triceratops in right lateral view. Picture credit: Everything Dinosaur.
Picture credit: Everything Dinosaur
A spokesperson from Everything Dinosaur stated:
“We are delighted that the Triceratops exhibit has proved to be so popular. Our customer surveys confirm that Triceratops is a favourite dinosaur. It is pleasing to see this plant-eater taking centre stage.”
A new study examining diapsid fossil teeth from Lower Triassic sediments in South Africa has provided further evidence of the recovery of terrestrial ecosystems after the end-Permian mass extinction event. The research highlights the growing diversity of archosauromorphs following the extinction of parareptiles and therapsids.
Diapsid fossil teeth study sees rise of the Archosauromorpha in southern Africa. Temnospondyls (grey), archosauromorphs (monochrome), early mammals (yellow) and extinct therapsids (red). Picture credit: Everything Dinosaur.
The research team collected teeth from the Driefontein locality in Free State Province, South Africa. The strata represent Lower Triassic deposits (late Olenekian stage). The rocks are part of the Burgersdorp Formation and form part of the Karoo Basin, which provides an extensive geological record, crucially deposition that occurred before and after the end-Permian extinction event.
A total of 102 teeth were collected. The scientists identified 81 diapsid teeth with the remaining teeth classified as coming from temnospondyls. Analysis of the tooth morphology demonstrated that there was a greater diversity of archosauromorphs and other diapsids.
This research suggests that diapsids, especially archosauromorphs benefitted from the mass extinction event. They played an important role in the recovery of terrestrial ecosystems. Archosauromorphs filled many of the niches left vacant after the extinction of therapsids and anapsid reptiles.
The prehistoric life of South Africa. The image shows the diverse flora and fauna that had evolved in South Africa by the Early Jurassic (Hettangian faunal stage). Archosaurs dominated terrestrial ecosystems but shared these habitats with other diapsids and early mammals. Picture credit: The Evolutionary Studies Institute (The University of Witwatersrand).
The fossil teeth from Driefontein provide palaeontologists with an important window into how terrestrial ecosystems recovered. The largest mass extinction recorded in the Phanerozoic occurred approximately 252 million years ago. The end-Permian mass extinction event devastated both marine and terrestrial ecosystems. The Karoo Basin may yield further evidence to help palaeontologists to better understand how life bounced back from the mass extinction event. It may also help scientists to understand how the Archosauromorpha were able to gain an evolutionary advantage over other tetrapods. This may have ultimately helped the Dinosauria and their close relatives to dominate terrestrial habitats.
The scientific paper: “A diverse diapsid tooth assemblage from the Early Triassic (Driefontein locality, South Africa) records the recovery of diapsids following the end-Permian mass extinction” by Devin K. Hoffman, John P. Hancox and Sterling J. Nesbitt published in Plos One.
Thanks to researchers from the University of Bristol, the culprit behind the infamous destruction of New York’s first life-size dinosaur theme park has been revealed. A New York museum mystery has been solved.
A new paper from the University of Bristol documents the bizarre case of the destruction of prehistoric animal figures destined for New York’s Central Park. The research team have shed light on one of the strangest and most puzzling events in the early history of palaeontology.
In May 1871, the partially built, life-size models of prehistoric creatures including several dinosaurs, being created for a new museum were totally destroyed in an act of malicious vandalism by a gang of thugs armed with sledgehammers. The remains were carted away and buried somewhere in the park. They have not been found to date.
The sculptor Benjamin Waterhouse Hawkin’s conceptual drawing of the Palaeozoic Museum. Picture credit: Annual report of the Board of Commissioners of the Central Park (1858).
American Politician William “Boss” Tweed Not Involved
It had been widely thought that the destruction of the statues was ordered by the notorious American politician William “Boss” Tweed.
In the new paper from Ms Victoria Coules of Bristol’s Department of History of Art and Professor Michael Benton of Bristol’s School of Earth Sciences, the politician is exonerated. New light on this bizarre episode has been shed. Contrary to previous accounts, it was the Treasurer and Vice President of the Central Park, Henry Hilton who most likely, organised the vandalism.
Ms Coules commented:
“It’s all to do with the struggle for control of New York city in the years following the American Civil War (1861-1865). The city was at the centre of a power struggle – a battle for control of the city’s finances and lucrative building and development contracts.”
A New York City Power Struggle
As the city expanded, the iconic Central Park was taking shape. It was to be more than just a green space. It was to have other attractions, including the Palaeozoic Museum. Benjamin Waterhouse Hawkins, a famous British sculptor who had created the Crystal Palace Dinosaurs, the life-size models of prehistoric creatures in London – had travelled to the USA to build American versions of the animals.
However, the notorious William “Boss” Tweed had taken control of the city and, in sweeping changes to the city’s management, put his own henchmen in charge of city departments, including Central Park. They cancelled the partially complete project in late 1870. There the matter would have lain but in May 1871 someone ordered a gang of workmen to smash all of its partly finished contents.
Professor Benton (University of Bristol) explained:
“Previous accounts of the incident had always reported that this was done under the personal instruction of “Boss” Tweed himself, for various motives from raging that the display would be blasphemous, to vengeance for a perceived criticism of him in a New York Times report of the project’s cancellation.”
The studio of Benjamin Waterhouse Hawkins at the Central Park Arsenal, with models of extinct animals. Published in The 12th Annual Report of the Board of Commissioners of the Central Park for the Year Ending December 31st 1868. Picture credit: The University of Bristol.
Things Did Not Seem Right
Ms Coules added that when reading the reports, suspicions were raised. At the time, Tweed was fighting for his political life having already been accused of financial impropriety. Why would he have got himself involved in a museum project?
The research team examined the original sources and discovered that the culprit was not Tweed.
“The motive was not blasphemy or hurt vanity”.
A Complicated New York Museum Mystery
The situation was complicated by two other projects in development at the same time in Central Park. The building of the American Museum of Natural History and the Central Park Zoo.
Professor Benton explained:
“Drawing on the detailed annual reports and minutes of Central Park, along with reports in the New York Times, we can show that the real villain was one strange character by the name of Henry Hilton.”
Ms Coules stated that with the primary information sources available on-line, the researchers could study them in detail. They were able to demonstrate that the destruction of the prehistoric animal statues was ordered by Henry Hilton. He was the Treasurer and Vice President of Central Park.
Hilton was already infamous for other eccentric behaviour. For example, he ordered a bronze statue in the Park painted white. When the skeleton of a whale was donated to the American Museum of Natural History, he ordered that painted white too.
The Megalosaurus statue at Crystal Palace a dinosaur from 1854. This sculpture is still on display in south London. Picture credit: Everything Dinosaur.
Picture credit: Everything Dinosaur
The picture above shows one of the Crystal Palace prehistoric animal statues. This is the Megalosaurus. Like the other sculptures at Crystal Palace, it is a Grade I listed building.
Summing up this bizarre tale, Professor Benton concluded:
“This might seem like a local act of thuggery but correcting the record is hugely important in our understanding of the history of palaeontology. We show it wasn’t blasphemy, or an act of petty vengeance by William Tweed, but the act of a very strange individual who made equally bizarre decisions about how artefacts should be treated – painting statues or whale skeletons white and destroying the museum models. He can be seen as the villain of the piece but as a character, Hilton remains an enigmatic mystery.”
Everything Dinosaur acknowledges the assistance of a media release from the University of Bristol in the compilation of this article.
The scientific paper: “The curious case of Central Park’s dinosaurs: The destruction of Benjamin Waterhouse Hawkins’ Paleozoic Museum revisited” by Victoria Coules and Michael J. Benton published in the Proceedings of the Geologists’ Association.
The discovery of a fossil sturgeon scute demonstrates that these “royal fish” were present in North Africa during the Late Cretaceous. The single, fossil scute is the first ever sturgeon fossil to have been found in Africa. The scute is a bony plate embedded into the sturgeon’s skin. Scutes provided a form of dermal armour that evolved to help protect these very ancient fish.
A digital photo of the sturgeon scute (also called buckler) specimen. Picture credit: University of Portsmouth.
A Significant Fossil Discovery
The sturgeon (there are more than two dozen extant species), belongs to the Acipenseriformes Order, which probably originated in the Late Triassic. Sturgeon fossils which are very similar to extant species, are known from Upper Cretaceous strata. Historically, they are associated with cooler waters of the Northern Hemisphere. The specimen was discovered by Professor David Martill (University of Portsmouth). It proves that these magnificent fish were present in Africa.
Sturgeons were more widespread in the Cretaceous than previously thought.
An extant European sturgeon. Picture credit: University of Portsmouth.
Professor Martill was exploring a well-known Moroccan fossil site during a field trip last November. He spotted a row of bony plates (bucklers) on a piece of rock and instinctively recognised the fossils represented the scutes from a sturgeon.
Discussing this significant fossil find, the Professor commented:
“It was a surprising discovery because all sturgeon species have been exclusively found in the Northern Hemisphere in the past. They’ve been located in North America, Europe, Russian Asia, Chinese Asia, but never in South America, Australia, Africa or India, which are the land masses that made up Gondwana, a supercontinent that existed around 336 million years ago and began breaking up around 150 million years ago.”
A drawing showing an extant sturgeon in lateral view. The different scutes are highlighted. Picture credit: University of Portsmouth.
A “Royal Fish”
The sturgeon has long been prized for its meat and for its roe (eggs). The roe is commonly referred to as caviar. King Edward II of England declared that all sturgeon from the waters of Wales and England belong to the monarch. This declaration was made in the early 14th century. Since then, these fish have been regarded as “royal fish”.
Sadly, due to overfishing and pollution, many species of extant sturgeon are close to extinction.
Commenting on his African fossil discovery Professor Martill stated:
“Russian beluga caviar is one of the most expensive in the world. Little did we know that at one time an extremely rare African sturgeon could have been a source of this delicacy!”
A digital photo of the dorsal surface of the fossil. Note the scale bar of 20 mm. Picture credit: University of Portsmouth.
Fossil Sturgeon Scute
Sturgeon are thought of as being “living fossils”, for they seem to have remained relatively unchanged since the time of Tyrannosaurus rex and Triceratops. Records from the 18th and 19th centuries indicate specimens reaching more than seven metres in length and weighing over 1.5 tonnes, but fish of this size are exceedingly rare today.
Professor Martill added:
“The very first sturgeons appear in the fossil record in the Late Triassic period in China. But the oldest true sturgeon ever discovered is probably a specimen in the Steve Etches collection from Dorset’s Jurassic Coast in England, which is mentioned in a book Steve and I wrote about fossils in the Kimmeridge Clay Formation.”
The discovery of a sturgeon fossil in Morocco complicates models of the geographical distribution of these fish during the Late Cretaceous.
A map of the continents at the end of the Cretaceous (66 million years ago). Sturgeon fossil localities are marked by solid black circles. Picture credit: University of Portsmouth
The fossil specimen is now in the collection of the University King Hassan II, Casablanca.
Everything Dinosaur acknowledges the assistance of a media release from the University of Portsmouth in the compilation of this article.
The scientific paper: “A sturgeon (Actinopterygii, Acipenseriformes) from the Upper Cretaceous of Africa” by David M. Martill published in Cretaceous Research.
Oxford University Museum of Natural History has completed the purchase of archive material belonging to pioneering geologist the Reverend William Buckland and his wife Mary (née Morland).
This is an important, historical and culturally significant archive that has been acquired by the Oxford University Museum of Natural History (OUMNH). The material which documents the contribution to science by the 19th century theologian and geologist contains over 1,000 items. There are notebooks, family papers, drawings, artworks and letters. The collection is noteworthy as it also highlights the contribution of Buckland’s wife Mary (née Morland). Mary was a talented artist and naturalist.
A portrait of the Reverend William Buckland. Picture credit: Oxford University Museum of Natural History.
Funding the Acquisition
The acquisition has been made possible with support from the Friends of the National Libraries, Headley Trust, the Arts Council England/V&A Purchase Grant Fund and National Heritage Memorial Fund. Private donors also contributed.
Head of Earth Collections at the OUMNH, Eliza Howlett stated:
“The Museum’s acquisition of a large collection of Buckland papers from private hands is a game-changer for historians of science and others with an interest in the histories of gender, class, and colonialism. Combined with the already large and diverse Oxford collections, the new materials will confirm OUMNH as the epicentre for future research, and we are tremendously grateful to the many trusts and foundations, and to the private individuals, who generously contributed to this purchase.”
This important collection also includes correspondence between Mary Anning and William Buckland about new fossil discoveries. In a letter penned by Mary Anning the famous Lyme Regis resident informs the Reverend William Buckland about the discovery of Plesiosaurus remains.
Part of a signed letter from Mary Anning to William Buckland from December 21st 1830, informing him of a plesiosaur skeleton she had recently discovered. Picture credit: Oxford University Museum of Natural History.
William Buckland
William Buckland was a hugely influential figure in academia, religion, politics and science. He successively held the positions of Reader in Mineralogy and Geology at Oxford University; Dean of Westminster and Canon of Christ Church, Oxford.
He is accredited with the first, formal scientific description of a dinosaur (Megalosaurus bucklandii). This was one of three genera placed into the Dinosauria by Richard Owen in the early 1840s.
The partial dentary with teeth associated with Megalosaurus bucklandii on display at the Oxford University Museum of Natural History. Picture credit: Everything Dinosaur.
The reverend William Buckland also pioneered palaeoecology with is ground-breaking study of an ancient hyena den. Buckland was also a notable convert to glacial theory, and showed how glaciation rather than a global flood shaped the British landscape.
An Insight into the Life of a Pioneering Scientist
This extensive archive reveals aspects of Buckland’s life as a student at Corpus Christi College, Oxford, as well his work as a practising geologist, eminent member of the clergy and university lecturer. Evidence from the archive provides a comprehensive insight into the thinking and institutions of the early 19th century. During this time, the biblical interpretation of creation was being challenged. Material in the archive documents correspondence with major figures such as art critic John Ruskin and prime minister Robert Peel.
A watercolour of the Reverend William Buckland inspecting a rock formation in Snowdonia, by Thomas Sopwith (October 1841). Picture credit: Oxford University Museum of Natural History.
Identifying Iconic Artworks
The archive also includes original artworks, such as Thomas Sopwith’s watercolour of William Buckland exploring a rock formation armed with a geological hammer. It had been thought that this artwork portrayed Mary Anning. The collection also includes an exceptionally rare, coloured version of the lithograph based on Henry de la Beche’s drawing Duria Antiquior. The artwork, depicting prehistoric Dorset, is famous for being the first pictorial representation of a scene of prehistoric life based on fossil evidence.
Mary’s Contribution is Recognised
This substantial archive also includes a number of illustrations created by Buckland’s wife Mary (née Morland). Highlights include two of Mary’s sketchbooks. One of these, dating from before her marriage to Buckland, contains exquisite ink and watercolour drawings of natural history specimens, and highlights the huge artistic and scientific contribution she made to her husband’s work.
A watercolour of Dipus canadensis, a jumping mouse from Canada, by Mary Morland circa 1817 from her notebook of specimens. Picture credit: Oxford University Museum of Natural History.
Dr Simon Thurley CBE, Chair of the National Heritage Memorial Fund, commented:
“I am delighted the National Heritage Memorial Fund is able to support Oxford University Museum of Natural History to acquire the outstanding Buckland Archive and ensure that the collection remains together and is saved for the nation.”
Uniting the Collections
The Oxford University Museum of Natural History is already a significant repository for Buckland’s work. This new archive will fit with the Museum’s existing collection, helping to provide a more complete understanding of the contribution made to science and to scientific debate.
Reuniting these collections both physically and digitally will allow researchers and other museum audiences access to the full spectrum of Buckland material.
Everything Dinosaur acknowledges the assistance of a media release from the Oxford University Museum of Natural History in the compilation of this article.
Whilst the Dinosauria dominated terrestrial environments during the Mesozoic the seas and oceans of the world were home to a diverse assemblage of marine reptiles. Many different types of marine reptile evolved, and the diverse swimming techniques employed by these ancient animals have been revealed in a recently published scientific paper.
The swimming secrets of Mesozoic marine reptiles have been decoded thanks to a research team from the University of Bristol.
A replica of the ichthyosaur Eurhinosaurus (PNSO). During the Mesozoic, many different types of marine reptile evolved. Scientists from the University of Bristol have unlocked the swimming secrets of ancient marine reptiles.
The image (above) shows a replica of an Eurhinosaurus. An ichthyosaur (Leptonectidae family) that lived during the Early Jurassic (approximately 180 million years ago).
During the Mesozoic, which lasted from approximately 252 million years ago to the end-Cretaceous mass extinction event around 66 million years ago, many different types of marine reptile evolved. There were placodonts, turtles, the first ichthyosaurs and nothosaurs during the Triassic and these were replaced by marine crocodiles, derived ichthyosaurs, long-necked plesiosaurs and pliosaurs. During the Cretaceous the mosasaurs evolved.
In the new paper, published in the academic journal “Palaeontology”, the research team report on the use of cutting-edge statistical methods used to undertake a substantial quantitative study. This research, the first of its kind, provides a fresh perspective on the locomotion of Mesozoic marine reptiles.
Examining 125 Skeletons
In total, 125 marine reptile skeletons were studied. The research team mapped the changes in swimming styles within the different lineages over time. There was no explosive radiation at the beginning of the Triassic, but a gradual diversification of swimming styles. This diversity peaked during the Cretaceous.
Marine reptiles from the Mesozoic Era evolved a great diversity of body forms and sizes. Changes in their body and limb anatomy throughout evolution are associated with swimming adaptations. The variety of locomotory modes in Mesozoic marine reptiles is illustrated by (bottom-to-top) an early mosasauroid, a placodont, a plesiosaur and a fish-shaped ichthyosaur. Picture credit: Dr Susana Gutarra.
Dr Susana Gutarra (School of Earth Sciences at the University of Bristol), lead author of the paper commented:
“Changes in anatomy in land-to-sea transitions are intimately linked to the evolution of swimming. For example, sea lions’ flippers have relatively short forearm and large hands, very different from the walking legs of their ancestors. The rich fossil record of Mesozoic marine reptiles provided great opportunity to study these transitions at a large scale.”
The End-Permian Mass Extinction Event
At the end of the Permian, the Earth experienced a catastrophic mass extinction event. Life on Earth was devastated. It has been estimated that 50% of all marine families and over 80% of all marine genera died out (Raup and Sepkoski).
Remarkably, marine environments recovered relatively quickly. Various groups of reptiles became aquatic hunters.
To read an article from 2010 that documents a remarkable fossil site in China that provides evidence of how marine food webs recovered from the end-Permian mass extinction event: Ancient Ecosystem Revealed.
To test the validity of the statistical analysis, measurements from extant aquatic animals were included in the study.
Co-author Beatrice Heighton (University of Bristol), explained:
“We included measurements from living aquatic animals, such as otters, seals and turtles, of which we know their swimming behaviour. This is very important to provide a functional reference for the ancient species, with unknown swimming modes.”
Palaeobiologist Dr Susana Gutarra taking measurements from a very complete specimen of Liopleurodon, a pliosaur from the Middle-Late Jurassic of Germany (Museum of Palaeontology in Tübingen). Picture credit: Dr Susana Gutarra.
A Gradual Diversity of Swimming Styles
Co-author Dr Tom Stubbs (University of Bristol) added:
After this devastating event, there was a gradual diversification of locomotory modes, which contrasts with the rapid radiation described previously for feeding strategies. This is fascinating because it suggests a ‘head-first’ pattern of evolution in certain lineages.”
The scientific paper sheds light into the swimming styles of specific groups of marine reptile.
Dr Ben Moon (University of Bristol) explained the significance of this study, stating:
“Ichthyosaurs were highly specialised for aquatic locomotion from very early in their evolution. This includes their close relatives, the hupehsuchians, which had a morphology unlike any other known aquatic tetrapod. Further, we see overlap between mosasaurs and ichthyosaurs, which is indicative that mosasaurs evolved a swimming mode by oscillating flukes, different from the eel-like body undulation suggested in the past.”
An almost 8m-long specimen of Temnodontosaurus, an ichthyosaur from the Early Jurassic of Germany (State Museum of Natural History of Stuttgart, Germany), is one of the fossils included in this study. Picture credit: Dr Susana Gutarra.
Dr Moon of Bristol University’s School of Earth Science went onto add:
“In contrast, we don’t find evidence of convergence between ichthyosaurs and metriorhynchids (the highly aquatic crocodyliform thalattosuchians). This group retained quite primitive-looking hindlimbs, which seems incompatible with swimming by fluke oscillation.”
Examining the Evolution of Size
This comprehensive study also examined the evolution of size, a feature related to locomotion, animal physiology and ocean productivity.
The University of Bristol’s Professor Mike Benton, a co-author of the research paper commented:
“We know that transition to life in water is usually accompanied by an increase in body mass, as seen in cetaceans, and one of our previous studies shows that large sizes benefit aquatic animals in reducing the mass-specific costs of drag. Thus, it was essential to explore this trait in the wider ensemble of Mesozoic marine reptiles.”
Dr Gutarra explained that body mass follows a similar trend to the diversification of locomotory modes. The widest spread of body size also occurred in the Cretaceous. This confirms a strong correlation between the evolution of diverse swimming styles and changes in body mass.
Dr Gutarra added:
“The rate of increase and the maximum limits to body size seems to vary a lot between groups. This is a fascinating observation. We need to explore further what factors influence and limit the increase in body mass in each group.”
Everything Dinosaur acknowledges the assistance of a media release from the University of Bristol in the compilation of this article.
The scientific paper: “The locomotor ecomorphology of Mesozoic marine reptiles” by Susana Gutarra, Thomas L. Stubbs, Benjamin C. Moon, Beatrice H. Heighton and Michael J. Benton published in Palaeontology.
The Wyoming Dinosaur Centre (WDC) located in East Thermopolis, (Wyoming) will be hosting their first-ever “Jurassic Fest – Passion for the Past” event towards the end of June this year. This amazing dinosaur museum is putting on a special two-day event for dinosaur fans of all ages. Headlining the dinosaur extravaganza is British palaeontologist, celebrated author and television presenter Dr Dean Lomax.
The museum is highly respected and regarded as one of the most family-friendly tourist locations in the western United States. Opened in 1995, the museum has world-class dinosaur fossil exhibits and also takes visitors out on active dinosaur fossil dig sites.
A family digging for dinosaur fossils at the Wyoming Dinosaur Centre. Picture credit: (c) WDC.
Dr Dean Lomax
Dr Dean Lomax recently made international headlines when he led the excavation of one of the greatest discoveries in British paleontological history, the huge “Rutland Sea Dragon”, the largest and most complete ichthyosaur fossil ever found in the UK.
Dr Dean Lomax working on the skull of the Rutland ichthyosaur, the largest and most complete ichthyosaur fossil ever found in the UK. Picture credit: Matthew Power.
Dr Lomax will be returning to Wyoming after first visiting in 2008, then just an 18-year-old teenager straight out of high school. Growing up in the town of Doncaster in Yorkshire, England, Lomax did not have the grades or finances to initially go to university and even failed science in high school. When the Wyoming Dinosaur Center offered Dean the chance of a lifetime to volunteer and follow his dreams, he jumped at this opportunity and even sold his possessions (including his childhood Star Wars collection) to fund the trip.
Fifteen years later, Dr Lomax is an award-winning palaeontologist who has discovered and named multiple new species, written best-selling books and appeared on several television programmes. An affiliated scientist at the University of Manchester, Dean’s unconventional journey into the Earth Sciences was begun in Wyoming.
His success epitomises a “can do” attitude and the importance of never letting go your dreams.
Dr Dean Lomax commented:
“I wouldn’t be the person I am today if it wasn’t for the opportunity I was given to come to Wyoming and volunteer at the WDC in 2008. The WDC provided me with the vital experience I needed to get my foot on the ladder and work out how to make it in such a competitive field.”
Why Dinosaurs?
“Jurassic Fest – Passion for the Past” will also feature a special preview of “Why Dinosaurs?”, an intriguing dinosaur-themed documentary which examines the appeal of the Dinosauria. Directed, filmed and edited by father and son Tony and James Pinto, the film has taken five years to create and explores various themes concerning the popularity of dinosaurs.
The poster for “Why Dinosaurs?” Picture credit: Tony Pinto, Why Dinosaurs
The Wyoming Dinosaur Centre
Angie Guyon, the Wyoming Dinosaur Centre’s director explained that the staff were proud to have helped launch Dean’s career. Team members were looking forward to seeing the British palaeontologist again and learning more about his adventures.
The Wyoming Dinosaur Centre is committed to teaching the importance of palaeontology and every year staff see the impact on individuals and families as the Centre provides exciting, personal educational experiences to both adults and young people.
The director added:
“Jurassic Fest will provide an opportunity to listen and learn from renowned fossil experts and get your hands dirty.”
The Jurassic Fest poster. Picture credit: (c) Wyoming Dinosaur Centre.
Wyoming Dinosaur Centre “Jurassic Fest – Passion for the Past”
“Jurassic Fest – Passion for the Past” will give prehistoric animal fans of all ages the chance to dig up dinosaurs with Dr Lomax, to hunt for new dinosaur sites and to explore the fossil-rich formations that surround the Wyoming Dinosaur Centre.
The rocks in the area preserve the remains of some of the most iconic dinosaurs from the Late Jurassic, giants like Diplodocus and apex predators such as Allosaurus. Visitors can meet many of these dinosaurs in the famous Dinosaur Hall at the Wyoming Dinosaur Centre.
The amazing Dinosaur Hall at the Wyoming Dinosaur Centre. Picture credit: (c) WDC.
Exciting Speakers
A stellar line-up of exciting speakers will also be sharing their passion for the past, each with a strong connection to the Centre, including Jimmy Waldron of the hit podcast “Dinosaurs Will Always Be Awesome”, author of “Passion in the Bones” Elaine Howard from Florida, Dr Laura Vietti from the University of Wyoming and Dr Brandon Drake from the University of New Mexico.
Families digging up dinosaur bones. Picture credit: (c) WDC.
Behind the Scenes Tour and Cleaning Fossil Bones
As part of the planned activities for “Jurassic Fest” visitors will be offered special behind-the-scenes tours of the museum and given the opportunity to clean dinosaur bones and to converse with leading scientists.
Angie Guyon hopes that Jurassic Fest will deliver an educational, fun, and inspiring two-day event that will highlight the fascinating work of palaeontologists and science communicators which will help to capture the global importance of Wyoming’s prehistoric history.
Angie explained:
“The variety of hands-on activities will provide the public with an opportunity to gain first-hand experience, listen to a series of inspirational lectures and discover more about the research and excavation of local dinosaur finds from the Morrison Formation. This is not to be missed.”
The two-day “Jurassic Fest – Passion for the Past” extravaganza will take place on June 23-24, 2023. Tickets and more information can be found at the following address: “Jurassic Fest – Passion for the Past”.
Everything Dinosaur acknowledges the assistance of Dr Dean Lomax in the compilation of this article.
A virtually complete titanosaur skull has been found in Queensland. The fossil discovery is Australia’s most complete sauropod skull found to date. It supports the hypothesis that Australian sauropods originated in South America. The titanosaur skull has been assigned to Diamantinasaurus matildae.
A view of the Diamantinasaurus skull bones in approximate life position: Picture credit: Australian Age of Dinosaurs.
Diamantinasaurus matildae
Australian Age of Dinosaurs Museum researchers in collaboration with Curtin University (Perth) despatched a media release announcing the discovery of the stunning sauropod skull. The fossil specimen, nicknamed “Ann” was excavated in 2018 at a dig site located at Elderslie Station, near Winton (Queensland).
Field team members working at the “Ann” dig site. Picture credit: Australian Age of Dinosaurs.
The fossil specimen is believed to be between 98-95 million years old (Cenomanian faunal stage of the Late Cretaceous). It is the fourth specimen of Diamantinasaurus matildae to have been discovered by Australian Age of Dinosaurs Museum staff.
Studying the Skull
Research on the titanosaur skull was led by Museum Research Associate Dr Stephen Poropat, a Postdoctoral Research Fellow at Curtin University.
Dr Poropat stated:
“This skull gives us a rare glimpse into the anatomy of this enormous sauropod that lived in northeast Australia almost 100 million years ago.”
Dr Stephen Poropat (left) and right, Dr Phil Mannion (University College London) examining the “Ann” site fossil material including the Diamantinasaurus skull bones, the Oliver scapula and vertebra two. Picture credit: Australian Age of Dinosaurs.
Implications for Titanosaur Evolution
The researchers identified similarities between “Ann” and the skull of another titanosaur Sarmientosaurus musacchioi. S. musacchioi fossils come from southern Argentina, from rocks which are roughly contemporaneous with the Winton Formation strata. The braincases of these two titanosaurs were similar, along with the dentition (teeth). Similar anatomical characteristics were also identified in the quadratojugal (a bone from the back of the skull near the posterior of the lower jaw).
Dr Poropat commented that their findings support previous theories that sauropods were using Antarctica as a migratory pathway between South America and Australia between 100 and 95 million years ago.
The doctor added:
“Our research suggests that Diamantinasaurus was one of the most ‘primitive’ titanosaurs. Gaining a better understanding of this species might explain why titanosaurs were so successful, across so much of the world, right until the end of the Age of Dinosaurs.”
A life reconstruction of the titanosaur Diamantinasaurus. Picture credit: Australian Age of Dinosaurs.
Titanosaur Skull Links Australian Dinosaurs to Antarctica and South America
At the beginning of the Late Cretaceous (100 to 95 million years ago), the Earth was much warmer than it is today. Antarctica which was located approximately where it is today, was ice free. Australia was much further south and closely associated with the Antarctic landmass. The huge conifer forests of Antarctica might have been an attractive habitat for migratory sauropods. The similarities between “Ann” and Sarmientosaurus skull matieral lends weight to the theory that titanosaurs used Antarctica as a pathway to Australia.
The Diamantinasaurus skull fossils are currently on display at the Australian Age of Dinosaurs Museum.
Everything Dinosaur acknowledges the assistance of a media release from the Australian Age of Dinosaurs Museum in the compilation of this article.
The scientific paper: “A nearly complete skull of the sauropod dinosaur Diamantinasaurus matildae from the Upper Cretaceous Winton Formation of Australia and implications for the early evolution of titanosaurs” by Stephen F. Poropat, Philip D. Mannion, Samantha L. Rigby, Ruairidh J. Duncan, Adele H. Pentland, Joseph J. Bevitt, Trish Sloan and David A. Elliott published by Royal Society Open Science.
A new study suggests that the key to the evolutionary success of the early mammals, was to stay small, eat insects and to reduce the number of bones in their skull. The reduction of mammalian skull bones led to a more efficient absorption of bite forces and this adaptation helped mammals to diversify and to ultimately dominate modern ecosystems.
The study, published in the academic journal “Communications Biology” contrasts the skulls of other vertebrates and mammalian ancestors with mammals known from the Jurassic and Cretaceous. In many vertebrate groups such as reptiles and fishes, the skull and lower jaw are composed of numerous bones. This configuration was also seen in the earliest ancestors of modern mammals that lived over 300 million years ago (Cynodontia). However, during evolution the number of bones in the skull was reduced.
Digital skull model of the small-sized Jurassic mammal ancestor Hadrocodium wui with coin providing scale. Picture credit: Dr Stephan Lautenschlager, University of Birmingham.
A Reduction in Mammalian Skull Bones
Computer simulations based on three-dimensional skull models permitted the research team to examine bite forces and skull stresses. Their research demonstrates that reducing the number of skull bones did not lead to higher bite forces or increased skull strength as postulated previously.
Instead, the researchers, found that the skull shape of these early mammals redirected stresses during feeding in a more efficient way.
Lead author for the study, Dr Stephan Lautenschlager, Senior Lecturer for Palaeobiology (University of Birmingham) explained:
“Reducing the number of bones led to a redistribution of stresses in the skull of early mammals. Stress was redirected from the part of the skull housing the brain to the margins of the skull during feeding, which may have allowed for an increase in brain size.”
Switching Diets
The study, which also involved scientists from the University of Hull, Bristol University, the University of Chicago and the London Natural History Museum, demonstrated that alongside the reduction of skull bones, early mammals also became a lot smaller. Some Mammaliaformes for example, had skulls around 1 cm in length.
This miniaturisation considerably restricted the available food sources and early mammals adapted to feeding mostly on insects.
Dr Lautenschlager added:
“Changes to skull structure combined with mammals becoming smaller are linked with a dietary switch to consuming insects – allowing the subsequent diversification of mammals which led to development of the wide-range of creatures that we see around us today.”
Life reconstruction of Hadrocodium wui. This Jurassic mammal is depicted hunting insects, illustrating how the adoption of an insectivorous diet and miniaturisation played a significant role in mammal evolution. Picture credit: Dr Stephan Lautenschlager, University of Birmingham.
Hadrocodium wui
One of the mammaliaforms used in the study, is Hadrocodium wui fossils of which are known from the Early Jurassic (Sinemurian faunal stage) of China. At around ten centimetres long, this tiny animal was a very small and inconsequential member of the Lufeng Formation biota, which was dominated by dinosaurs such as Lufengosaurus.
An illustration of Lufengosaurus. Picture credit: Everything Dinosaur.
Picture credit: Everything Dinosaur
The image (above) is a drawing of the Early Jurassic sauropodomorph Lufengosaurus.
The research team concludes that miniaturisation and staying small, combined with a reduction in skull bones and a switch to an insectivorous diet allowed the ancestors of modern mammals to thrive in the shadows of the Dinosauria. Having nocturnal habits may also have permitted these animals to carve out their own ecological niches in dinosaur dominated ecosystems.
It was not until dinosaurs became extinct at the end of the Cretaceous, some 66 million years ago, that mammals had a chance to further diversify and reach the large range of body sizes seen in many extant mammals today.
Everything Dinosaur acknowledges the assistance of a media release from the University of Birmingham in the compilation of this article.
The scientific paper: “Functional reorganisation of the cranial skeleton during the cynodont–mammaliaform transition” by Stephan Lautenschlager, Michael J. Fagan, Zhe-Xi Luo, Charlotte M. Bird, Pamela Gill and Emily J. Rayfield published in Communications Biology.
